Matriarch

myths-and-legends.deviantart.c… is having a mermaid contest!  Thought I'd enter with my picture of the matriarch of both the Orca's and the mermaids training the new generation in how to hunt.  Do they have their work cut out for them or what. 

Extra points for

uncommon type (old)
More than 3 mermaids
Pets: the orcas.